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Vladimir [108]
3 years ago
11

The solution to the given system of linear equations lies in which quadrant?

Mathematics
2 answers:
Sphinxa [80]3 years ago
8 0

Answer:

Its actually IV

D

lara31 [8.8K]3 years ago
4 0

B is the answer to your question
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Help, I’m stuck. Lol.
Darya [45]

Answer:

a. height = 12

b. area = 228

Step-by-step explanation:

a. To find the height, we can use the triangle formed by the side that measures 15, the side that measures 9. and the height. The hypotenuse of the triangle(the longest side opposite of the right angle), is 15. We can then use the Pythagorean Theorem, which states that a^2+b^2=c^2, where c is the hypotenuse, and a and b are the two other sides. In this case, we need to find a leg of the triangle, not the hypotenuse. What do we do? We can first call the height a, and rearrange the Theorem into c^2-b^2=a^2. 15^2=225, 9^2=81, and 225-81=\sqrt{144}=12. Therefore, the height of the parallelogram is \boxed{12}

b. To find the area of the parallelogram, we can use the area formula, which is Base*Height. The base is the flat side. We can find the base by adding 9+10=19, and 19\cdot12=\boxed{228}

6 0
4 years ago
Use the magnitudes​ (Richter scale) of the earthquakes listed in the data set below. Find the mean and median of this data set.
kvv77 [185]

Answer:

mean = 1.49

median = 1.53

Step-by-step explanation:

Using Excel, the procedure is the following

  1. Insert data set in a sheet. In my case I used cells A1 to AX1
  2. Compute mean with AVERAGE formula. In my case, AVERAGE(A1:AX1)
  3. Compute median with MEDIAN formula. In my case, MEDIAN(A1:AX1)

7.0 is an outlier because all data points are below 2.91

5 0
3 years ago
Read 2 more answers
How do I solve this?
prisoha [69]

y =  - 7 \\ x = 3

7 0
3 years ago
If 4 coins are tossed simultaneously what is the probability of getting exactly 3 heads
Alexus [3.1K]
No of outcomes =16
favourable outcome=4
<span>probability of getting exactly 3 heads=0.25</span>
6 0
4 years ago
An archway is modeled by the equation y = -2x^2 + 8x. A rod is to be placed across the archway at an angle defined by the equati
DIA [1.3K]
To solve this problem you must apply the proccedure shown below: 

1. You have that the the <span>archway is modeled by the equation y=-2x^2+8x and the angle mentioned in the problem is defined by the equation x−2.23y+10.34=0.
</span>
 2. Therefore, you must susbtitute y=-2x^2+8x into x−2.23y+10.34=0, as below:

 x−2.23(-2x^2+8x)+10.34=0

 3. When you apply the distributive property, you obtain:

 x−2.23(-2x^2+8x)+10.34=0
 x+4.46x^2-17.84x+10.34=0
 4.46x^2-16.84x+10.34=0

 4. When you solve the quadratic equation, you obtain:

 x=3 units

 Therefore, the answer is the option D: D. 3 units.
3 0
4 years ago
Read 2 more answers
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